I never had so much of standby and battery still at 75%. Note that the iPhone has not been plugged in since 100%.
I'm seeing the same thing, but not in a positive way. Some runaway process is killing my phone and being reported as usage.That can't be accurate, has to be a glitch in the OS reporting. 20 min difference between standby and usage. unless you were using your phone for 6 hours straight non stop i dont see how thats possible.